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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Engine Controls Self Diagnostics - 4.8L, 5.3L & 6.0L Gasoline) >> System Tests >> Malfunction Indicator Lamp Always On >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

If the problem is intermittent, see INTERMITTENT CONDITIONS  under SELF-DIAGNOSTIC SYSTEM.

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